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M. DONAUER.

LIQUID AGITATING TANK MCHANISM. FILED iuLY 1,1920.

Feb. 20, 1923. L11/6,245

INVENTOR al pmx naar:

Patented Feb 20, i923,

y i U NIT 'VS inedzt MAXDONAUER, or nnrnrmworrro, nssrenon 'roY 'riasanvar/i nNnr/rniinn rnonucrs COMPANY, or Envers, cnice, n'corvronnfrronor' orafo,y

LIeUin-nerrn'rrne-frnnk rfincnnnrsivr.

applicati@ nic-fi any .1,

f, tank mechanisms and particularly 'to suchmechanisms as employ apropeller ina tank.

` suchy agitation as will accomplish the results to produce agitationofthe liquid contents of the tank. l

It is an object of my inventionto promote souoht in an aaparatussi'mnleof construction, inexpensive to manufacture, anc. sanitary in itse'ect upon processedl food prod# ucts. lt is a further object of myinvention to promote the aforesaid objectsin a device from which theperipheral flow, of liquid .from the tips of"the .propeller blades isavoided, as I find that in case of some liquids sought to be processed l4@get a superior result when liquidis'propelled from the pro-J` c.peller in a stream `at a moderate rate of" i l l particular embodiment,l wish it to be un-k speed. Other objects of my invention and theinvention itself will be better understood by reference to the drawingsaccompanyingthis specification, and in which drawings,

Figure l shows an embodiment of my in vention shown mostly in crosssection.

Figure 2 shows a plan view ofthe tank mechanism of Figure l, the view ofFigure 1 being taken on a line l-I of Figure 2.

Referring to the drawings, at fig-A. are shown curved side walls ofatank herein illustrated as cylindrical, and at B, is shown the bottomwall thereof., herein kshown as downwardly curved. Near the bottom wallof the tank, l perforate theside wally at a point C to admit a propellershaft l) having on the end insidek the vtank a propeller E. Mounted onthe opposite end of the shaft,

outside the tank, is provided a pulley l), by`

ieee. saisine. 393,432. i

the propeller through the said space, de-

pendingon the direction of rotation of the said propeller.

Around the said propeller and preferably carried on the tipsvof theblades thereof, is mounted a metallic cylinder F, for a pur- .pose laterto be made apparent.

' Whenthe propeller is rotated, the liquid f contents of' thetank areclosed to traifel through the cylinder Fl and againstfthe opposite sidewall of the tank, being deflected ythereby in all directions. n y n Thetendency of the liquid contents of the tank torotate as Va whole is verymuch restricted by the. presence'of the cylinder F, which also restrictstbetendency'of the propellerjtov throwv olf particles of the liquidperipherally. ln this way greater flow of current is had travelingparallel with the axisofrotation kof the propeller shaft, said flowbeing of'considr-irable strength, though. f

of moderate velocity ascoinpared ywith the f peripherally flungcurrents, which other- .wise might be had in other constructions;alsothe tendencyof thepropeller to set up a rotary motion of the tankcontents,ab`out an axis constitutingan extension of the propeller shaft,is notso great. l

Having thus described my invention in a derstood that l` do not limit myinvention to it,'but am aware that numerous and eX- -tensive departuresmay bev made from the lembodiment herein illustrated and described andwithout departing from invention.

lclaim:` f

. 1.111 a device ofthe class described, a substantially cylindrical tankthe anis of the said tank 'being disposed vertically, a rotatablepitched propeller located in the said tank kand near the bottom thereof,said propeller having an enclosing` casing around its periphery, saidpropeller being` adapted to rotate in a vertical plane, the axis ofrotationv being directedl substantially toward the vertical axis of thetank.

the spirit of my 2. In a device of the class described, a

substantially cylindrical tank theaxis of the said vtank kbeing`disposed vertically, a rotatable pitched propeller located in the saidtank and near the bottom thereof, said tank having curved side walls,and said propeller having an enclosing casing around fits periphery,said propeller being adapted `2 indie-,aaa

to rotate 1u a vertical plane, the axis of rotation being,` directedsubstantially toward the vertical axis of the tank.

L1. ln-a device of the class described, a substantially cylindrical tankthe axis of the said tank being` disposedy vertically, a

rotatable pitched propeller located in the said tank and near the bottomthereof, said tankhaving' an inclined bottom Wall, and said propellerhaving an enclosing casing aroundits periphery, said propeller beingadapted to rotate in a vertical plane, the axis of rotation beingdirected substantially toward the vertical axis of the tank.

5. ln a device of th class described, a substantially c'lglindrf k theof the l said tank ljaelne dispo: e, vertically. a rotatable pitchedlpiuopeller `located in lthe said tank and near the bottoni thereor,said tank having a downwardly inclined bottom ivall, f and saidpropeller having an enclosing casing,` around its periphery, saidpropeller being adapted to rotate in a vertical plane, the axisofrotationy being directed substantially toward the vertical axis of thetank.

6. In aldevice of the class described, a substantially cylindrical tankthe axis of the said tank being disposed vertically, a rotatable pitchedpropeller located in the said tank and near the bo tom thereof, saidtank having` curved side Walls, saidtank havingan inclined bottom Wall,and said propeller having` an enclosing casing around its periphery,said propeller being adapted .to rotate in a vertical plane, the axis of'rotation being directed substantially toward the vertical axis of thetank.

7. ln a device of the class described, a substantially cylindrical tankthe axis of the said tank beingl disposed vertically, a rotatablepitched propeller located in the said tank and near the bottoni thereof,said tank having cylindrical side Walls, said tank having an inclinedbottorn Wall, and said propeller having an enclosing casing around itsperiphery, said propeller being adapted to rotate in a vertical plane,the axis of rotation being directedv substantially toward the verticalaxis of the tank.

8. ln a device of the class described,` a substantiallyv cylindricaltank the axis of the said tank being disposed vertically, a rotatablepitched propeller located in the said tank and near the bottom thereof,said tank havingv cylindrical side Walls, said tank having a downwardlyinclined bottom Wall, and said propeller havin` an enclosing casag;around its periphery, said propeller beingl adapted to rotate in a.vertical plane, i Awzis of rotarron'being directed substantially :ardthe vertical axis of the tank.

in Witness whereof, I have hereunto signe/,l in v naine this 25 of June,1920.

Max DoNAUnR.

